用population explosion造句子，“population explosion”造句

Chaotic urbanization: population explosion, the deterioration of rural land and poverty make millions of peasants of the Third World to leave rural areas, gathered in big cities.

How can we explain the recent population explosion?

Still later, China's population explosion, the population of men more than women to 37 million, this more than three thousand people have nothing to do but going online.

CANBERRA, Australia, June 18 (UPI) -- A respected Australian scientist says a population explosion and unbridled consumption will drive the human race to extinction in 100 years.

DURING the second half of the 20th century, the global population explosion was the big demographic bogey.

If everyone decided to be cloned, there would be a population explosion.

Some of the population explosion is explained by the extension of Roman citizenship to various groups, but far from all of it.

Valueladen and incendiary words such as the "population bomb" or "population explosion" are tossed around at will.